\documentclass{standalone}
\usepackage{tikz}
\usepackage{ctex,siunitx}
\setCJKmainfont{Noto Serif CJK SC}
\usepackage{tkz-euclide}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{circuitikz}
\usetikzlibrary{patterns, calc}
\usetikzlibrary {decorations.pathmorphing, decorations.pathreplacing, decorations.shapes}
\ctikzset{bipoles/length=1cm}
\begin{document}
\small
\begin{circuitikz}[>=latex, scale=1.3,european]
  % \useasboundingbox(0.9,0)rectangle(5.1,5);
  \draw (-1.5,.25)--(-1.5,1)--(-0.9,1) to [american inductor] (-0.9,-1)--(-1.5,-1)--(-1.5,-.25);
  \draw (1,-1)--(1,-1.3)--(-0.5,-1.3) to [american inductor,name=xq] (-0.5,1.3)--(1,1.3)--(1,1);
  \draw [ultra thick] (-0.7, -.4)--(-0.7, .4);
  \ctikzset{diodes/scale=0.6}  
  \draw (0,0) to [full diode=$D_4$] (1,1)  to [full diode=$D_1$] (2,0);
  \draw (0,0) to [full diode=$D_3$] (1,-1) to [full diode=$D_2$] (2,0);
  \draw (2,0)--(2.5,0) to [european, R=$R$,name=dz] (2.5,-1.6) --(0,-1.6)--(0,0);
  \draw [fill=white] (-1.5,.25) circle (1pt);
  \draw [fill=white] (-1.5,-.25) circle (1pt);
  \draw [fill=black] (0,0) circle (1pt);
  \draw [fill=black] (2,0) circle (1pt);
  \draw [fill=black] (1,-1) circle (1pt);
  \draw [fill=black] (1,1) circle (1pt);
  \node at (-1.5,0){$\sim $};
  \node at (dz.left)[right=1mm]{$+$};       
  \node at (dz.right)[right=1mm]{$-$};
  \node at (xq.left)[right]{$b$};        
  \node at (xq.right)[right]{$a$};
\end{circuitikz}
\end{document}